Cu2+修饰的氮掺杂石墨烯量子点荧光传感器检测2-巯基苯并噻唑的研究

王晓敏; 范哲锋

doi:doi：10.3969/j.issn.1004-4957.2019.06.010

您当前的位置：

首页 >

文章列表页 >

Cu2+修饰的氮掺杂石墨烯量子点荧光传感器检测2-巯基苯并噻唑的研究

- Cu2+修饰的氮掺杂石墨烯量子点荧光传感器检测2-巯基苯并噻唑的研究
- Study on Determination of 2-Mercaptobenzothiazole Using a Fluorescence Sensor with Cu2+ Modified Nitrogen-doped Graphene Quantum Dots
- 分析测试学报 2019年38卷第6期页码：693-698
- 作者机构：
  
  山西师范大学化学与材料科学学院
- 作者简介：
- 基金信息：
  
  贵州省联合基金项目(黔科合LH字［2014］7619);贵州大学教改项目(JG 2013014)
- DOI：doi：10.3969/j.issn.1004-4957.2019.06.010
  中图分类号：
- 纸质出版：2019
- 稿件说明：
移动端阅览
王晓敏, 范哲锋. Cu2+修饰的氮掺杂石墨烯量子点荧光传感器检测2-巯基苯并噻唑的研究[J]. 分析测试学报, 2019,38(6):693-698.

王晓敏, 范哲锋. Study on Determination of 2-Mercaptobenzothiazole Using a Fluorescence Sensor with Cu2+ Modified Nitrogen-doped Graphene Quantum Dots[J]. 2019, 38(6): 693-698.
王晓敏, 范哲锋. Cu2+修饰的氮掺杂石墨烯量子点荧光传感器检测2-巯基苯并噻唑的研究[J]. 分析测试学报, 2019,38(6):693-698. DOI： doi：10.3969/j.issn.1004-4957.2019.06.010.

王晓敏, 范哲锋. Study on Determination of 2-Mercaptobenzothiazole Using a Fluorescence Sensor with Cu2+ Modified Nitrogen-doped Graphene Quantum Dots[J]. 2019, 38(6): 693-698. DOI： doi：10.3969/j.issn.1004-4957.2019.06.010.

摘要

采用一步水热合成法制备了氮掺杂石墨烯量子点(N-GQDs)，量子点表面的特定官能团与Cu2+进一步结合后，形成N-GQDs-Cu2+络合物，有效地猝灭了荧光。加入2-巯基苯并噻唑(MBT)时，由于MBT与Cu2+具有强作用力，使得Cu2+从量子点表面解离下来，量子点荧光恢复。据此构建了一种基于Cu2+修饰的氮掺杂石墨烯量子点的高灵敏荧光传感器用于MBT的检测。在最佳实验条件下，MBT在0.4~40.0 μmol/L浓度范围内与荧光恢复强度呈良好线性，检出限为0.1 μmol/L。该方法用于实际水样中MBT的检测，加标回收率为95.0%~101%。

Abstract

In this paper

nitrogen-doped graphene quantum dots(N-GQDs) were prepared by one-step hydrothermal synthesis.Cu2+ ions were combined with the specific functional groups on surfaces of the quantum dots to form N-GQDs-Cu2+ complexes

which could quench fluorescence effectively.Furthermore

when 2-mercaptobenzothiazole(MBT) was added

Cu2+ were dissociated from the surface of the quantum dots due to the strong force of MBT and Cu2+

and the fluorescence from the quantum dots was recovered.Thus

a highly sensitive fluorescence sensor based on Cu2+ modified N-GQDsnitrogen-doped graphene quantum dots was constructed for the detection of MBT.Under the optimal experimental conditions

there was a good linear relationship between MBT and fluorescence recovery intensity in the concentration range of 0.4-40.0 μmol/L

and the limit of detection was 0.1 μmol/L.The method could be applied in the detection of MBT in real water samples with spiked recoveries of 95.0%-101%.

关键词

Keywords

references

浏览量

250

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

碳量子点的制备及其在铜离子荧光检测中的应用研究进展

基于氮硫掺杂的石墨烯量子点电化学发光传感器的构建及检测铜离子的研究

基于铜/银纳米簇检测铜离子的方法研究

手性荧光传感器的研究进展

基于归一化微塑料特征暴露的氧化损伤毒性分析新方法